. >> some residents in the presidio heights neighborhood were evacuated after workers punctured a gas line. cruise working on a water line when they struck the two inch gas line just afternoon causing a loud hissing sound. natural gas spew nootd air, crews cap that had leak in about an hour, neighbors returned home. >> the price of repairing damage from this ship that hit the bay bridge support to you jer rising. >> officials say the accident caused two to three million dollars in damage to the bridge but no problems. >> abc 7 news has more now. >> and happening throughout the day,bi the investigation continues with one major player joining in. barry strouch from the national transportation safety board officially began his investigation to try to determine if human error is to blame for monday's accident. this morning a representative of the marshal island ship and corporate strij was transported from alameda to oil tanker. the overseas raymar has a marshal island flag. the person is said to be here to examine the vessel. the ship has been ampk yeefrd hitting a tower of the bay bri